<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Looping Rhombuses Spinner</title>
  <style>
    .looping-rhombuses-spinner, .looping-rhombuses-spinner * {
      box-sizing: border-box;
    }

    .looping-rhombuses-spinner {
      width: calc(15px * 4);
      height: 15px;
      position: relative;
    }

    .looping-rhombuses-spinner .rhombus {
      height: 15px;
      width: 15px;
      background-color: #ff1d5e;
      left: calc(15px * 4);
      position: absolute;
      margin: 0 auto;
      border-radius: 2px;
      transform: translateY(0) rotate(45deg) scale(0);
      animation: looping-rhombuses-spinner-animation 2500ms linear infinite;
    }

    .looping-rhombuses-spinner .rhombus:nth-child(1) {
      animation-delay: calc(2500ms * 1 / -1.5);
    }

    .looping-rhombuses-spinner .rhombus:nth-child(2) {
      animation-delay: calc(2500ms * 2 / -1.5);
    }

    .looping-rhombuses-spinner .rhombus:nth-child(3) {
      animation-delay: calc(2500ms * 3 / -1.5);
    }

    @keyframes looping-rhombuses-spinner-animation {
      0% {
        transform: translateX(0) rotate(45deg) scale(0);
      }
      50% {
        transform: translateX(-233%) rotate(45deg) scale(1);
      }
      100% {
        transform: translateX(-466%) rotate(45deg) scale(0);
      }
    }
  </style>
</head>
<body>

<div class="looping-rhombuses-spinner">
  <div class="rhombus"></div>
  <div class="rhombus"></div>
  <div class="rhombus"></div>
</div>

</body>
</html>
